Roy Bhaskar 
Possibility of Naturalism [EPUB ebook] 
A philosophical critique of the contemporary human sciences

Since its original publication in 1979, The Possibility of Naturalism has been one of the most influential works in contemporary philosophy of science and social science. It is one of the cornerstones of the critical realist position, which is now widely seen as offering perhaps the only viable alternative to positivism and post-modernism. This revised edition includes a new foreword.